The star took also took part in a Christmas special reuniting with his co-star Ardal O'Hanlon back in 2014 of which he said at the time he was "happy" to be a part of.

Frank Kelly as Father Jack in Father Ted (Photo: Channel 4)

Frank had suspected he had Parkinson's for more than 20 years before he was diagnosed, telling the Irish Sun: "I was shaving with my left hand with my right hand down by my side, which my daughter Fiona noticed was shaking.

"That was a very long time ago. No one ever noticed that little shake in my hand, I just got on with it.”

He pointed out that famous Hollywood actor Michael J. Fox suffered from the exact same disease and still managed to continue with his successful career.

“You might have heard of the American actor Michael J Fox, who was diagnosed with Parkinson’s 22 years ago and is still working today. I'm the same.”